Engine housing enclosure
In the context of an enclosure-housed engine in which an engine 10 is housed within an enclosure 2 , the present invention is such that arranged in an intake chamber 8 A, separate from one or more chambers where a radiator 18 and the engine are disposed, there is engine intake equipment comprising an air cleaner 22 and an intake silencer 23 ; the constitution being such that at least one wall face of said intake chamber is subjected to a cooling airstream, intake and exhaust of which are driven by a radiator fan; and the constitution being such that the radiator fan 19 is driven, regardless of whether or not engine coolant within the radiator is circulating, when outside air temperature is greater than or equal to a prescribed temperature.
1. An enclosure for housing an engine, the enclosure comprising:
an intake chamber, separate from one or more chambers where a radiator and an engine are disposed, including engine intake equipment arranged therein, the engine intake equipment including an air cleaner and an intake silencer;
a radiator chamber, separate from the chamber where the engine is disposed, including the radiator and a radiator fan, wherein the intake chamber is adjacent to the radiator chamber to cause at least one wall face of the intake chamber to be subjected to a cooling airstream, intake and exhaust of which is driven by the radiator fan; and
one or more spaces other than the radiator chamber and the intake chamber including a liquid-liquid heat exchanger that extracts heat from engine coolant to the exterior, wherein control means operates the radiator fan to be driven, regardless of whether or not engine coolant within the radiator is circulating, when an engine intake air temperature is greater than or equal to a prescribed temperature, even when the engine coolant bypasses the radiator and flows into only the liquid-liquid heat exchanger.
2. An engine housing enclosure according to claim 1 , the engine housing enclosure being characterized in that an exhaust silencer is arranged in an exhaust chamber that is separate from the intake chamber and from the chamber or chambers where the engine and the radiator are disposed.